2. Install NVidia driver from NVidia over top of above. It is still a mystery what the graphics card on the server has to do with remote access, but there you go. This starts up a bit slow, but does seem to operate. Unfortunately when I log off this does not disconnect like every other X emulator I have ever used. This may be an X11 fault, but it has been going on all this year.
Seemed to leave a few processes running so updated /etc/systemd/logind.conf and set KillUserProcesses=yes + reboot
Still hangs on logout, but with no processes left behind.

By hang I mean the background display, minus any icons/menus, remains on screen and the X-terminal software does not get a "last session closed" message.

Unfortunately the end result is the same as X-Win32 with the NVidia driver. The logoff just leaves the background behind.

Using something like that would also create some issues on one of the operational networks as they use iGel thin clients to connect rather than PCs. I am sure anything away from standard X11 & RDP will just cause me grief later. It appears the iGel will do NX, which is what this is using, so it might be an option. It looks like the issue is more fundamental than what software is connecting.